OandBackupX old (zip) -> new (tar.gz) backup converter

oconv.sh

#!/bin/sh
# v0.2.0
# works for me, ymmv

BDIR=${1:-.}

_delete_cache=${DELETE_CACHE:-true}
_data=data
_ext=external_files
_prot=device_protected_files

_tmp=`mktemp -d`

_olddir=`pwd`

cd $BDIR
BDIR=`pwd`

_app=`basename $BDIR`

echo "Converting \`$_app\`..."

if [ -f $_app.zip ]; then
  echo "  Moving app data \`$_app.zip\` to \`data/\`."
  mkdir $_data
  mv $_app.zip $_data
  echo
fi


for _dir in $_data $_ext $_prot; do
  echo "  Processing \`$_dir\`..."
  cd $BDIR

  if [ -f $_dir/$_app.zip ]; then
    mkdir -p $_tmp/$_dir
    echo "    Unzipping \`$_dir/$_app.zip\` to tmp directory."
    unzip $_dir/$_app.zip -d "$_tmp/$_dir" >/dev/null

    cd $_tmp

    echo "    Fixing directory structure."
    mv $_dir/$_app/* $_dir/
    rmdir $_dir/$_app

    [ "$_delete_cache" == "true" ] && (echo "    Deleting cache."; rm -rf $_dir/*cache*)

    [ "`ls $_dir/`" != "" ] && (echo "    Creating \`$_dir.tar.gz\`."; tar czf $_dir.tar.gz $_dir)

    cd $BDIR

    if [ -e "$_tmp/$_dir.tar.gz" ]; then
      echo "    Moving \`$_dir.tar.gz\` to the app backup directory."
      mv $_tmp/$_dir.tar.gz .
    else
      echo "    \`$_dir\` is empty, ignoring."
    fi
  else
    echo "    Nothing to do."
  fi
  echo "  Finished processing \`$_dir\`."
  echo 
done

echo "  Cleaning up tmp files."
rm -rf $_tmp
echo "Backup \`$_app\` converted."

cd $_olddir

v0.2.0 changelog:

• empty archives don't end up in backup directory (this invalidated the backup)
• basic log output, unzip is quiet